Improvement in water-wheels



OEFIoE.

SAMUEL TEACHOUT, OF TROY, NEW YORK.

IMPROVEMENT IN WATER-WHEELS.

Specification forming part of Letters Patent No. 91,792, dated June 22, 1869.

To all whom it may concern Be it known that I, SAMUEL TEAcHoUT, of the city of Troy, in the county of Rensselaer and State of New York, haveinvcnted certain new and useful Improvements in Water- Wheels; and I do hereby declare the following to be a full7 clear, and exact description ofthe same, reference being hereby had to the accompanying drawings, which form and make a part of this my specification.

Figure l represents a sectional View of a water-wheel. Fig. 2 is a view showing the guides and buckets of a water-wheel, also the intermediate guide-s, constructed in accordance with my invention and improvements, more fully hereinafter' described and set forth.

The nature of my said invention and improvements consists in theintermediate guides or plates placed between and in combination with the guides of a water-wheel, substantially as hereinafter. described and set forth.

The object of my invention is to render all wheels using gates of the classshown in the accompanying drawings more effective for fluctuating streams by producing a more useful effect of the water discharged when the gate is partially closed, for, when the intermediate guide is used, it may be placed at a point toward .which the gatemoves proportional to the quantity of water in dry seasons, or to the variation of the power required.

Suppose, for example, that a, Fig. 2, is that point, and the gate O is closed in the same proportion, as shown by dotted lilies at Fig. 2: the water would then pass through the openings d d with the same relative velocity to that of the, wheel as when the gate was fully open, and the contraction of the vein remain as perfeet as before, while, were it not for the intermediate guide A, the gate must be closed' to some point, as shown by dotted lines at a", Fig. 2, proportioned to d d', Fig. 2-the dis.

tance between the guide B and intermediate guide--in order that the wheel may use proportionally less water, and, since the opening of the gate thus shown and the guide B determine the quantity of water used, and since the opening at the distance between the guide B' and B is much greater than a a, the relative velocity of the water and wheel becomes changed, and therefore the maximum effect cannot be obtained; also, since the opening ai a, through which the water enters, is suddenly changed in the guides to that of a a/, there is a great loss of effect by eddying motion, it being a principle of `hydraulics that any intermediate enlargement of the opening through which water passes is detrimental to its useful effect.

If desired, two or more intermediate guides may be used, according to the circumstances of the case.

Having thus described the nature of my said invention and improvements, what I claim as new, and desire to secure by Letters Patent ofthe United States, is-

1. The intermediate stationary guide A hetween the guides B B, its terminations heilig in line therewith, as arranged in relation to the water-wheel, in the manner substantially as and for the purposes herein described and set forth.

2. The combination of the intermediate guides A, as specified in the foregoing claim., with the .water-gate O, when the same are ararranged between the guides B B, in the manner and for the purposes substantially as herein described and set orth.

In testimony whereof I have hereunto set my hand this 23d day of February, 1869.

SAMUEL TEAGHOUT. Witnesses:

C. D. KELLUM, JAMES DALEY. 

